I went and compressed a raw avi 5760x1080p 8gb 2min to a 1920x1080 and on a 850 pro witch took about 5m35s wd black took about 6m5s would that mean unless you had SSDs in a raid a high end gpu would be boddlenecked and technically could have went with a lower end gpu also I was using 20gb ram wile 32gb total memory
O and bolth drives were using about 100%
O and bolth drives were using about 100%